Package for food products and the like



April 22, 1941. D. RAY

PACKAGE son FOOD PRODUCTS AND THE LIKE Y Filed Aug. 25, 1939 2 Sheets-Sheet 1 INVENTOR.

ATTORNEY.

April 22, 1941. D. RAY 2,239,571

PACKAGE FOR FOOD PRODUCTS AND THE LIKE Filed Aug; 25, 1939 2 Sheets-Sheet 2 uo/v @Ar 1N VENTOR.

A TTORNEY latented Apr. 22, 1 941 2,239,571 PACKAGE FOR roon raonuo'rs AND THE A Don Ray, Beverly Hills,

aliL, asslgnor to Arden Farms 00., Los Angeles, Calm, a corporation of Delaware Application August 25, 1939, Serial No. 291,885

4 Claims.

This invention relates to a package for food products and the like.

In the sealing of food products, particularly those of semi-solid character, such as ice cream, cheese and the like, it is desirable to provide a carton of simple construction, which is both inexpensive as to manufacturing cost and also to packaging costs, and it is furthermore desirable to provide a carton which may be easily'sealed to effectually enclose and preserve the contents thereof.

It is an object of the present invention, therefore, to provide a packaging structure which includes a'lining sheet and an outer sheet which, when foldedand locked in position, form an enclosing carton for the product. 7

The present invention contemplates the pro-- vision of a sheet of relatively stiff material, such as paper or cardboard, upon which is placed a lining sheet of a material impervious to moisture and the like, and which two sheets of material may then be folded and held in a temporary assembled position while a product is being placed therein, after which a sealing element or cover is applied to complete the carton and to hold the folded structure in its assembled condition around the product, whereby a complete and final package is produced.

The invention is illustrated by way of example in the accompanying drawings, in which:

Fig. 1 is a view in perspective showing the assembled carton with which the present invention is concerned.

Fig. 2 is an enlarged view in transverse section showing the assembled carton.

Fig. 3-is a view in plan showing the blankforming the outer carton element.

Fig. 4 is a View in plan showing the cover element by which the top of the carton is sealed and by which the elements of the carton are interlocked.

Fig. 5 is a view showing the inner lining sheet.

Fig. 6 is a view in sheet.

Fig. 7 is a view in transverse section showing the carton temporarily held in the forming and filling mold.

Fig. 8 is a view in transverse section similar to that shown in Fig. 7, in which the assembled and packed carton in final form is shown.

Fig. 9 is a fragmentary view of the package assembly with the cover blank removed.

Fig. 10 is a fragmentary view of the cover with its locking tang in position. Referring more particularly to the drawings, I0

plan showing the top lining indicates a blank from which a container body is made and with which the present invention is designed to operate. indicates the blank of a cover and sealing member adapted to interlock with the body member and to hold' the carton sealed and in package form. The blank I0 is generally square in outline and has an octagonal center portion l2 scored therein. This octagonal field I2 is bounded by score marks l3 to 20, inelusive, and forms the bottom of a container. The sides of the field I2 as represented by the score marks carry side wall sections which when folded at right angles to the bottom field l2 form the side walls of an octagonal container. The

wall sections adjoining the score marks l3, l5, l1 and I 9 are each designated by the numeral 2|.

. The wall sections adjoining the score marks I4,

l6, I8 and are each designated at 22. The sections 2| are interlocking sections to receive lock tangs carried by the cover member l as will be hereinafter described. These sections have a transversely extending slit 23 extending parallel to their outer edges and suitably spaced therefrom. To facilitate in the interlocking operation oppositely disposed inclined slits 24 and 25 are formed in the portion of the members 2| between their outer edges and the slits 23, and are disposed a distance from the ends of the slits 23 as will accommodate the lock tangs of the cover member. Parallel score marks 26 and 21 extend from the inner score marks previously described and to the outer edges of the portions 2|. The distance between these score marks is a distance representing the length of the score marks bounding the octagonal center field I2. The marginal side edges of the portions 2| flare outwardly as indicated at 28 and form triangular portions 29 which produce overlapping corner ,fiaps for the finished container. The portions 22 have opposite parallel sides 30 and 3| which are spaced a distance apart equal to the length of the score marks of the octagonal center. The portions 22 are also formed with a transverse score mark 32 which is parallel to 'the inner score mark of the octagonal field and is spaced a distance from the inner score mark equal to that between the sides of the octagonal field |2 and the outer marginal edge 33 of the portions 2|. This distance represents the height of the container. Formed as a part of the portions 22 and extending beyond the score marks 32 is a cover flap 3 which lies at the corner of the blank and has opposite marginal edges 35 and 36 which are in longitudinal alignment with the marginal edges 33 of the portions 2|.

These 48 from the octagonal field 39.

2 edges terminate in shoulders 31 and 38 which are at right angles to outer marginal edges and meet with the side edges 39 and 3|. The length of the triangular portions 29 as represented by the distance from the score marks 26 and 21 to the corner of the triangular portions lying along the marginal edge 33 is shorter than the distance between the score marks 26 or 21 and the edges 39 or 3| of the wall portions 22. for a special purpose to be hereinafter set forth. The cover blank H is substantially square in shape and has an octagonal center portion agreeing in dimensions substantially with that of the octagonal field l2 of the body blank Hi. This octagonal field is designated at 39 and is bounded by marginal edges 49 to 4'? inclusive. The edges 49, 42, 44 and 46 are the outer edges of the blank; The edges 4|, diagonal score marks adjacent the corners of the blank. These score marks separate locking tangs The tangs have outer marginal edges 49 and 59 which are at right angles to each other and converge in a rounded point 5i. Locking hooks 52 are formed by recessed portions 53 adjacent to the base of each of the tangs. These hooks pass through the slits 23 in the portions 2i of the body member and interlock therewith to hold the cover in place and to hold all of the sides of the body member N1 in their assembled relationship to preserve the shape of a sealed package.

Folded within the blank 19 forming the body of the carton is a thin lining sheet 55. This sheet agrees in configuration with the field l2 of the blank ill but may be of larger overall dimensions so that its marginal edge can overlap the upper face of the food pr oduct By reference to Fig. 5 of the drawings, the inner liner is shown with the folded marks indicated by dotted lines as they occur when the carton is folded. It will there be seen that the corners of the lining sheet 55 fold over upon each other and conform to the octagonal which is packed within the carton.

By reference to Fig. 6, a top lining element is shown which comprises a sheet of relatively stiff material 55 folded within a lining sheet 51. The lining sheets 55 and 51 are preferably made of material which is impervious to moisture and air and will not contaminate the food product or be deteriorated thereby. The top liner may be a simple octagonal piece, or of a form similar to the top H.

Attention is directed to the fact that there are no interlocking elements provided on the blank III which interlock with any part of the blank 10. In other words, the blank l9 does not require any particular assembling operation to tuck tangs or looking members into cooperating parts of the blank. The blank I9 is held in its final assembled position with the food product therein by the interlocking action produced by the tangsof I, which fit within the locking slits 23 of the blank 19, and by the interlocking action of the portions 34 of the blank I0 in engagement as they are folded under and are held by the cover blank I I. This construction is particularly disclosed in the perspective view indicated in Figs. 9 and 10 of the drawings.

In Fig. 9 a fragmentary view is shown in which the cover blank H has been removed. One of the me bers 22 has been broken away so the cover blank I that the folds in-thelining sheet 55 will appear.

Here it will be seeli'that this material is folded upon itself in a gusset-like'manne'r, as indicated This is provided at 58, and that thetriangular portions at the sides of the members 2 I, as defined by the score marks 26 and 28, project into the fold of the gusset so that the lining sheet and the blank It will be interlocked when the package has been completely sealed. It will also be seen that the flaps 34 are folded over the top ofthe package and that they will overhang the upper edges of the folds 2|. I 1

Referring to Fig. 10, it will be seen that when the blank H is assembled with the blank Hi the "center fold 39 of the blank [9 will conform to 43, 45 and 41 are t a plurality of .side

the top configuration of the locking tangs 48 will fit down through the slits 23 of the blank 19 and overlap the edges 35 and 39 of the flaps 34 to prevent the flaps 3t from withdrawing from their folded-positions. Thus, the entire structure will be held assembled .by the locking action of the members 49 of the cover blank II when they interlook with the blank 19 andare projected through the slits 23 therein.

In order to rapidly and efliciently form, fill and seal the package, a mold 69 is provided. This mold has'a bottom wall El through which a central opening 62 is formed, and also provided with walls 63 which agree in numher, height and width with the sides of the pack side faces of the food product the portion ofthe walls 2| age to be formed.

It will be understood that while the package is here shown as being octagonal in shape, that other forms might be found convenient.

It is preferable that alternate side faces of the mold shall be provided with means for holding the folded body blank 19 therein during filling and sealing operations, such as assembly pin structures 64. These constitute a pin 64' yieldably held by a spring 65 and projecting through an opening in the inner face of alternate side walls. t

When packaging materials within the package structure here disclosed; it is desirable to place the blank I0 within the mold 60 with the sides 2| of the blank registering with the sides of the mold which carry pins have been so positioned as to insure that above the slits 23 will be flexed to provide a relatively narrow throat 23' which communicates with an adjacent slit 23, this structure being shown in Fig of the drawings. When the blank is so positioned within the mold its portions 29 will overlap "the portions 22, as particularly shown in Fig. 'l, and

the flaps 34 will extend upwardly in an unfolded position.

It is to be understood that while the blank [9 is shown in Fig. 7 as being placed within the mold separately from a liner sheet 55 that this showing has been made for the sake of clarity. The liner sheet will stand within the inside of the blank as generally indicated by dotted lines in the figure, in the event the liner is of larger the outer blank ID.

in the blank H! as held within the mold. Attention is directed to the fact that the mold is used as the only'means for holding the blank in a temporary assembled and shaped condition,

and that if the blank is removed from the mold it would tend to spread out toits original form since the parts of the blank do not interlock. After the material has been placed within the folded and lined blank to a level approximating the upper edge of the mold, a cover lining, for example a lining as shown in Fig. 6, is placed the package. and that the assembly pins 54. These 1 sition through the slits 23 folded downwardly so that these will pass,

through the throats 23' and into a locking poof the blank 10. Pressure is then exerted against the bottom I2 of the blank I!) through the opening 62 of the mold to elect the complete package from the mold. It will thus beevident that the cover blank II will hold the entire structure in assembled-position with its various parts properly interlocked.

While I have shown the preferred form of my invention as now known to me, it will be understood that various changes may be made in combination, construction and arrangement of parts by those skilled in the art, without departing-from the spirit of my invention as claimed.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A container comprising an inner wrapper for a product, said wrapper having 'a central polygonal field and a'marginal portion around the entire perimeter thereof for forming side walls when folded at right angles to the center field and being scored to form intermediate gussets, a cover wrapper having a central polygonal field and a marginal field adapted to receive said inner wrapper, the marginal field forming outer sidewalls agreeing with the side walls of the wrapper and providing tangs along edges thereof adapted to fold into the gussets of the inner wrapper, and a top cover of polygonal shape adapted to be placed over the cover wrapper to engage the same and to hold the parts of the container in their folded and formed condition and to close the container.

2. A container comprising an inner wrapper for a product, said wrapper having a central polygonal field and a marginal portion around.

the entire'perimeter thereof for forming side walls when folded at right angles to the center field and being scored to form intermediate gussets, a cover wrapper having a central polygonal field and a marginal field adapted to receive said inner wrapper, the marginal field forming outer side walls agreeing with the side walls of the wrapper and providing tangs along edges thereof adapted to fold into the gussets of the inner wrapper, a top cover of polygonal shape adapted to be placed over the cover wrapper .to engage the same and to hold the parts of the container in their folded and formed con- Y dition and to close the container, and interlocking means between the top cover and the cover wrapper for holding the top cover in position.

'3. A container comprising an inner wrapper for a product, said wrapper having a central polygonal field and a marginal portion around the entire perimeter thereof for forming side walls when folded at rightangles to the center field and being scored to form intermediate gussets, a cover wrapper having a central polygonal field and a marginalfield adapted to receive said inner wrapper, the marginal field forming outer side walls agreeing with the side walls of the wrapper and providingtangs along edges thereof adapted to fold into the gussets of the inner wrapper, a top cover of polygonal shape adapted to be placed over the cover wrapper to engage the same and to hold the parts of the container in their folded and formed condition and to close the container, and interlocking means between the top cover and the cover wrapper for holding the top cover in position, said interlocking means being formed by slits formed in the walls of the marginal fields of the cover wrapper and tangs carried at the cover and projecting marginal edges of the top into and interlocking with said slits.

4. A container comprising an inner wrapper for a product, said wrapper having an octagonal central field, from each edge of which a rectangular marginal field extends to provide a side wall for a container formed by foldingsaid rectangular. fields at right angles to the center field, triangular portions extending between the contiguous edges of the rectangular fields and folded upon themselves to form triangular gussets lying against the face of the contiguous side walls, an outer carton enclosing said inner wrapper,said outer carton having a central octagonal field agreeing with the octagonal field of the inner wrapper, the sides of said rectangular sections emanating from the sides of the rectangular field of the outer carton and when folded at right angles to the central field forming a container for the inner wrapper and the product disposed therein, alternate triangular fiaps formed along the opposite edges of alternate rectangular fields and overlapping the intermediate rectangular fields of the carton, said triangular fiaps extending into the gussets of the inner wrapper, a top cover octagonal in shape covering the assembled structure, and interlocking means between the cover and the side walls of the outer carton whereby thelcarton and its inner wrapper will be maintained in their assembled and folded condition and the package will be sealed.

DON RAY. 

